public class DEV521_S95Controller {
    DateTime t1;
//    DateTime t2;
    transient DateTime t2;
   
    public string getT1(){
        if (t1==null){
            t1 = System.now();
        }
        
        return t1.format('yyyy/MM/dd HH:mm:ss');
    }
    
        public string getT2(){
        if (t2==null){
            t2 = System.now();
        }
        
        return t2.format('yyyy/MM/dd HH:mm:ss');
    }


}